单项选择题

—He must be in the reding-room now. We will find him there. ---No, he _____.Tom sid he ws

illt—He must be in the reding-room now. We will find him there. ---No, he _____.Tom sid he ws illt home .must not B.cn’t C.my not D.should notA.must notB.can’tC.may notD.should not